JP7724197B2 - Vehicle-mounted table device - Google Patents

Description

This disclosure relates to an in-vehicle table device that is installed in a vehicle.

The back of a seatback installed in a vehicle such as an automobile or train is equipped with an in-vehicle table device that transitions between a closed state in which the table body is positioned along the back of the seatback, and an open state in which the table body protrudes from the back of the seatback. The table body is connected to the seatback via a hinge fixed to the back of the seatback.

An example of a table body has a single shell shape. The table body includes a lower surface member and an upper surface member. The lower surface member has a decorative surface that faces the rear of the seat back in the closed state and a claw portion that faces the upper surface member. The upper surface member has a support surface that functions as a table in the open state and an engaging portion that engages with the claw portion. The claw portion of the lower surface member engages with the engaging portion of the upper surface member, thereby assembling the upper surface member and the lower surface member into a single shell shape (see, for example, Patent Document 1).

An example of the table body further includes a buffer member made of a rubber plate. The buffer member is fixed to the inner surface of the lower surface member with an adhesive so that it is adjacent to the claw portion on the inner surface of the lower surface member. The buffer member deforms in response to the bending of the upper surface member and lower surface member, absorbing external forces acting on the claw portion and preventing the upper surface member from separating from the lower surface member.

Japanese Patent Application Laid-Open No. 2005-73951

On the other hand, the cushioning member, which is fixed to the inner surface of the lower surface member with an adhesive, can become detached from the lower surface member or shift in position relative to the tabs due to vibrations transmitted from the vehicle body or contact with the outside air. If the cushioning member becomes detached from the lower surface member or shifts in position relative to the tabs, the upper surface member can easily separate from the lower surface member due to external impacts transmitted to the table body.

The in-vehicle table device that solves the above problem is an in-vehicle table device that includes a base portion that is attached to the vehicle interior and a table main body that is rotatably supported on the base portion. The table main body includes an upper surface member that forms the upper surface of the table main body, a lower surface member that forms the lower surface of the table main body, and a cushioning member sandwiched between the upper surface member and the lower surface member. The upper surface member includes an upper surface fitted portion that is arranged inside the table main body, and the lower surface member includes a lower surface fitted portion that is arranged inside the table main body. The cushioning member includes an upper fitting portion that fits into the upper surface fitted portion, and a lower fitting portion that fits into the lower surface fitted portion.

With the above configuration, the upper engaging portion is fitted into the upper engaged portion, thereby mechanically connecting the upper surface member to the cushioning member. The lower engaging portion is fitted into the lower engaged portion, thereby mechanically connecting the lower surface member to the cushioning member. In this way, the cushioning member is mechanically connected to both the upper and lower surface members, thereby enhancing the robustness of the connection between the upper and lower surface members by the cushioning member.

In the above-mentioned vehicle-mounted table device, the table body may have an outer peripheral end surface, and the buffer member may protrude outward from the outer peripheral end surface beyond the upper surface member and the lower surface member.

With the above configuration, the shock absorber can soften the impact acting on the outer peripheral edge surface of the table body. This also prevents the upper surface member from separating from the lower surface member due to the impact acting on the outer peripheral edge surface. Furthermore, the reaction force from the table body can be reduced for the object that applies the impact to the outer peripheral edge surface of the table body.

In the above-mentioned vehicle-mounted table device, the lower surface member may have an abutment portion, and the buffer member may have an abutment portion that abuts against the abutment portion in the thickness direction of the table body when the lower fitting portion is fitted into the lower surface fitting portion.

With the above configuration, when the lower mating portion is fitted into the lower mated portion, the abutting portion of the cushioning member abuts the abutted portion of the lower member in the thickness direction of the table body. Impacts and vibrations acting from the lower member in the thickness direction of the table body are then absorbed by the cushioning member. This further enhances the robustness of the connection between the upper and lower members against impacts acting in the thickness direction of the table body.

In the above-mentioned vehicle-mounted table device, one of the upper surface member and the lower surface member may be a first member, and the other of the upper surface member and the lower surface member other than the first member may be a second member, the inner surface of the first member may have a restricting protrusion that rises toward the second member, the restricting protrusion may have a restricting hole, the inner surface of the second member may have a restricted protrusion that fits into the restricting hole, and the position of the second member in the thickness direction of the table body may be restricted by the first member by the restricted protrusion fitting into the restricting hole.

With the above configuration, the restricted protrusion of the second member is fitted into the restricting hole of the first member, thereby restricting the position of the second member in the thickness direction of the table body to the first member. Therefore, separation of the first member from the second member due to impact or vibration in the thickness direction of the table body is also prevented through the direct mechanical connection between the first and second members.

The above-mentioned vehicle-mounted table device may include a bracket made of a metal plate fixed to the inner surface of the upper surface member, the bracket having a plurality of positioning holes, and the lower surface member having a positioning protrusion that rises toward the upper surface member and a rigid portion of the lower surface member that has increased mechanical strength, and the bracket may be positioned on the lower surface member by fitting the positioning protrusion into the positioning hole, and may be overlapped with the rigid portion.

With the above configuration, the mechanical strength of the table body is increased by the bracket and rigid portion. Furthermore, because the bracket fixed to the upper surface member is positioned by the positioning protrusion on the lower surface member, misalignment of the lower surface member relative to the upper surface member is also suppressed through bracket positioning.

In the above-mentioned vehicle-mounted table device, at least one of the upper surface mating portion and the lower surface mating portion is a first mating portion, and the mating portion of the upper mating portion and the lower mating portion that mated with the first mating portion is a first mating portion, and the first mating portion and the first mating portion may be mated in the thickness direction of the table body and in the direction in which the support surface of the table body widens.

In the above-described vehicle-mounted table device, at least one of the upper surface mating portion and the lower surface mating portion may be a first mating portion, and the mating portion of the upper mating portion or the lower mating portion that mated with the first mating portion may be a first mating portion, the first mating portion may include a mating piece that protrudes from the outer peripheral end surface of the table body toward the inside of the table body in the direction in which the table body's support surface widens, the mating piece may include a locking portion that protrudes in the thickness direction of the table body, the first mating portion may include a mating recess into which the mating piece is mated, and the mating recess may include a locking hole into which the locking portion is mated when the mating piece is mated in the mating recess.

With each of the above configurations, the first engaging portion can be fixed to the first engaged portion in two intersecting directions. This further reduces misalignment of the buffer member relative to the lower or upper surface member.

In the above-mentioned vehicle-mounted table device, one of the upper surface member and the lower surface member may be a first member, and the other of the upper surface member and the lower surface member other than the first member may be a second member, the inner surface of the first member may have a mated protrusion that rises toward the second member, and the cushioning member may have a first positioning portion that positions the cushioning member on the mated protrusion in the thickness direction of the mated protrusion, and a second positioning portion that positions the cushioning member on the mated protrusion in the height direction of the mated protrusion.

According to the above configuration, the buffer member can be positioned relative to the first member in two directions that intersect with each other, which further reduces the positional deviation of the buffer member relative to the first member.
In the above-described vehicle-mounted table apparatus, the buffer member may extend in a circumferential direction of the table body, and may include the upper fitting portions and the lower fitting portions alternately in the circumferential direction.

With the above configuration, the mechanical connection between the upper surface member and the cushioning member and the mechanical connection between the lower surface member and the cushioning member are alternately repeated in the circumferential direction of the table body. As a result, the mechanical connection force between the upper surface member and the cushioning member is obtained so that it is continuous in the circumferential direction of the table body, and the mechanical connection force between the lower surface member and the cushioning member is also obtained so that it is continuous in the circumferential direction of the table body. As a result, it is possible to prevent the connection between the upper surface member and the cushioning member or the connection between the lower surface member and the cushioning member from being weakened locally in the circumferential direction of the table body.

The above-mentioned vehicle-mounted table device increases the robustness of the vehicle-mounted table device.

FIG. 1 is a side view showing the in-vehicle table device in a closed state. FIG. 2 is a side view showing the in-vehicle table device in the open state. FIG. 3 is an exploded perspective view of the base portion as seen from above on the front side. FIG. 4 is an exploded perspective view of the base portion as viewed from below on the front side. FIG. 5 is a plan view showing the structure of the inner surface of the upper surface member. FIG. 6 is an enlarged perspective view showing a part of the inner structure of the upper surface member. FIG. 7 is a plan view showing the structure of the inner surface of the lower surface member. FIG. 8 is an enlarged perspective view showing a part of the inner surface structure of the lower surface member. FIG. 9 is a plan view showing the first buffer member. FIG. 10 is an enlarged perspective view of a portion of the first buffer member. FIG. 11 is a side view showing the second buffer member. FIG. 12 is a partial cross-sectional view showing a structure for fixing the upper surface member to the lower surface member. FIG. 13 is a partial cross-sectional view showing a structure for fixing the upper surface member to the lower surface member. FIG. 14 is a partial cross-sectional view showing a structure for fixing the upper surface member to the lower surface member. FIG. 15 is a partial cross-sectional view showing a structure for fixing the upper surface member to the lower surface member. FIG. 16 is a partial cross-sectional view showing a structure for fixing the upper surface member to the lower surface member.

[In-vehicle table device]
As shown in FIG. 1 , the in-vehicle table apparatus includes a base 10 and a table body 20. The base 10 is attached to the interior of a vehicle, such as a seat back, in an automobile or train. The table body 20 has a rectangular plate shape with rounded corners. The lower end of the table body 20 is rotatably supported on the lower end of the base 10 via a hinge 20H. The table body 20 rotates between a closed position (see FIG. 1 ) in which it is positioned along the vehicle interior and an open position (see FIG. 2 ) in which it is positioned so as to extend beyond the vehicle interior. The in-vehicle table apparatus transitions between an open state in which the table body 20 in the closed position faces the base 10 and an open state in which the table body 20 protrudes from the base 10. Note that FIG. 1 shows the in-vehicle table apparatus in the closed state. FIG. 2 shows the table apparatus in the open state.

As shown in FIG. 2, the table body 20 comprises an upper surface member 30, a cushioning member 40, and a lower surface member 50. The upper surface member 30, the cushioning member 40, and the lower surface member 50 are each made of resin. The upper surface member 30 and the lower surface member 50 have higher bending strength, compressive strength, and hardness than the cushioning member 40. The cushioning member 40 has higher elongation than the upper surface member 30 and the lower surface member 50. Examples of materials that can be used to make the upper surface member 30 and the lower surface member 50 include polypropylene, acrylonitrile-butadiene-styrene copolymer, and polycarbonate. Examples of materials that can be used to make the cushioning member 40 include thermoplastic elastomers such as polyvinyl chloride, ethylene-propylene rubber, and polyurethane.

The top surface member 30 forms the upper surface of the table body 20. The top surface member 30 is positioned above the buffer member 40 and the bottom surface member 50 when the table body 20 is in the open position. The top surface member 30 provides the placement surface 20S, as the upper surface of the table body 20, on which an item is placed when the table body 20 is in the open position.

The bottom surface member 50 forms the underside of the table body 20. The bottom surface member 50 is positioned below the buffer member 40 and the top surface member 30 when the table body 20 is in the open position. The bottom surface member 50 provides the decorative surface of the table body 20 when the table body 20 is in the closed position.

The outer peripheral end surface 20R of the table body 20 has a gently convex curve that protrudes outward from the table body 20. The upper surface member 30, the buffer member 40, and the lower surface member 50 each make up the outer peripheral end surface 20R of the table body 20. At the outer peripheral end surface 20R, the buffer member 40 protrudes further outward from the table body 20 than the upper surface member 30 and the lower surface member 50.

[Table body 20]
As shown in Figure 3, the table body 20 includes an anti-slip sheet 21, a bracket 60, and a magnet member 71T. The anti-slip sheet 21 has a rectangular shape with rounded corners. One side of the anti-slip sheet 21 is a placement surface 20S. The anti-slip sheet 21 includes a sheet cutout 21T on a portion of the edge of the anti-slip sheet 21.

The top surface member 30 comprises a top surface main body portion 32 and a pair of hinge connecting portions 30H. The top surface main body portion 32 has a rectangular plate shape with rounded corners. The top surface main body portion 32 has a bowl shape that protrudes gently downward. The top surface main body portion 32 has a magnet insertion hole 31T that penetrates the top surface main body portion 32 in the vertical direction. The pair of hinge connecting portions 30H rise upward from the outer surface of the top surface main body portion 32. The pair of hinge connecting portions 30H are located on one side of the outer periphery of the top surface main body portion 32 that connects to the base portion 10. The pair of hinge connecting portions 30H connect the top surface main body portion 32 to the hinges 20H that connect the table body 20 to the base portion 10. The anti-slip sheet 21 is attached to the outer surface 30S of the upper main body portion 32 so that the edge of the sheet cutout 21T is aligned with the edge of the magnet insertion hole 31T.

The buffer member 40 comprises a first buffer member 40A and a second buffer member 40B. The first buffer member 40A has an open ring shape. The first buffer member 40A has a shape that follows the outer periphery of the upper surface main body portion 32, excluding the linear portion sandwiched between the pair of hinge connecting portions 30H. The second buffer member 40B has a linear shape. The second buffer member 40B has a shape that follows the outer periphery of the upper surface main body portion 32, excluding the linear portion sandwiched between the pair of hinge connecting portions 30H.

The first buffer member 40A comprises a buffer main body 42, two positioned end portions 40E, multiple upper fitting portions 43, and multiple lower fitting portions 45. The buffer main body 42 has an open ring shape that follows the outer periphery of the upper surface main body 32. The outer surface of the buffer main body 42 forms the outer periphery end surface 20R of the table body 20. The buffer main body 42 is formed integrally with the positioned end portions 40E, upper fitting portions 43, and lower fitting portions 45. The buffer main body 42 supports the positioned end portions 40E, upper fitting portions 43, and lower fitting portions 45 so that they are positioned inside the table body 20 and protrude inward of the first buffer member 40A.

The positioned end portions 40E are located at both ends of the buffer main body portion 42 in the circumferential direction of the buffer main body portion 42. The positioned end portions 40E have a closed ring shape that protrudes inwardly of the first buffer member 40A. The upper mating portions 43 and the lower mating portions 45 are arranged alternately in the circumferential direction of the buffer main body portion 42. The upper mating portions 43 have a protruding piece shape that protrudes inwardly of the first buffer member 40A. The lower mating portions 45 have a closed ring shape that protrudes inwardly of the first buffer member 40A.

As shown in FIG. 4, the inner surface of the upper surface main body portion 32 has two first buffer positioning portions 30E, multiple upper surface mating portions 34, and multiple second buffer positioning portions 35. The first buffer positioning portions 30E are protrusions that protrude from the inner surface of the upper surface main body portion 32 toward the lower surface member 50. Each positioned end portion 40E of the first buffer member 40A is hooked one by one to a first buffer positioning portion 30E, thereby positioning the first buffer member 40A on the upper surface main body portion 32. Each lower mating portion 45 of the first buffer member 40A is hooked one by one to a second buffer positioning portion 35, which also positions the first buffer member 40A on the upper surface main body portion 32. As a result, the first buffer member 40A is positioned on the upper surface main body portion 32 throughout the entire extension direction of the first buffer member 40A. Each upper fitting portion 43 of the first buffer member 40A fits into one of the upper surface fitting portions 34, securing the first buffer member 40A to the upper surface main body portion 32.

Returning to Figure 3, the second buffer member 40B includes an upper positioned portion 43B, a lower positioned portion 45D, and a hinge cover 40H. The upper positioned portion 43B and the lower positioned portion 45D have a closed ring shape that protrudes toward the inside of the buffer member 40. The upper positioned portion 43B is hooked onto a protrusion that protrudes from the inner surface of the upper main body portion 32 toward the lower surface member 50, thereby positioning the second buffer member 40B on the upper main body portion 32. The lower positioned portion 45D is hooked onto a positioning protrusion 54B that protrudes from the inner surface of the lower surface member 50 toward the upper surface member 30, thereby positioning the second buffer member 40B on the lower surface member 50. The hinge cover 40H covers the hinge connection portion 30H.

The bracket 60 is made of a metal plate that increases the mechanical rigidity of the table body 20. The bracket 60 has a plate shape that conforms to the inner surface of the top body portion 32. The bracket 60 is fixed to the top member 30 by screwing it to the inner surface of the top body portion 32. The bracket 60 has a hinge support portion 60H and a positioning hole 65.

The hinge support portion 60H is bent upward from between the upper surface member 30 and the lower surface member 50 toward the upper surface main body portion 32. The hinge support portion 60H is disposed between the hinge connection portion 30H and the hinge cover 40H. The hinge cover 40H covers the hinge connection portion 30H and the hinge support portion 60H. The hinge support portion 60H reinforces the connection between the table main body 20 and the hinge via the hinge connection portion 30H.

The positioning hole 65 is positioned between the upper surface member 30 and the lower surface member 50 and penetrates the bracket 60 in the vertical direction. The positioning hole 65 engages with the positioning protrusion 56 that protrudes from the inner surface of the lower surface member 50 toward the upper surface member 30, thereby positioning the bracket 60, which is screwed to the upper surface member 30, on the lower surface member 50.

The lower surface member 50 includes a lower surface main body portion 52, a first lower surface wall 50W1, a second lower surface wall 50W2, multiple third lower surface walls 50W3 (see Figure 8), and positioning protrusions 54B, 56. The lower surface main body portion 52 has a square plate shape with rounded corners that matches the outer shape of the upper surface main body portion 32. The inner surface of the lower surface main body portion 52 has a bowl shape that protrudes gently downward. The inner surface of the lower surface main body portion 52 includes multiple protruding ribs 52T that rise toward the upper surface main body portion 32. The multiple protruding ribs 52T are an example of a rigid portion of the lower surface main body portion 52 that has increased mechanical strength, and abut against the underside of the bracket 60 positioned by the positioning protrusions 56.

The lower main body portion 52 has a magnet fastening portion 51T that rises from the inner surface of the lower main body portion 52. The magnet fastening portion 51T fastens a magnet member 71T to the lower main body portion 52 for magnetically attaching to the base portion 10. The magnet member 71T fastened to the lower main body portion 52 passes through the magnet insertion hole 31T. The magnet member 71T is positioned so that it faces the base portion 10 when the table body 20 is in the closed position, and is magnetically attached to the base portion 10.

The first lower wall 50W1, the second lower wall 50W2, and the multiple third lower walls 50W3 each rise from the inner surface of the lower main body portion 52 toward the upper surface member 30. The first lower wall 50W1, the second lower wall 50W2, and the multiple third lower walls 50W3 are approximately equal in height. The first lower wall 50W1 is positioned along the edge of the lower main body portion 52 around almost the entire periphery of the lower main body portion 52. The second lower wall 50W2 is positioned more inward of the lower main body portion 52 than the first lower wall 50W1. Each third lower wall 50W3 is positioned more inward of the lower main body portion 52 than the third lower wall 50W3.

The first lower wall 50W1 has multiple lower fitted portions 54. Each lower fitted portion 45 of the first buffer member 40A is fitted into a corresponding lower fitted portion 54, securing the first buffer member 40A to the lower main body portion 52. The positioning protrusions 54B are hooked onto the lower positioned portions 45D of the second buffer member 40B, positioning the second buffer member 40B on the lower member 50. The positioning protrusions 56 are hooked onto the positioning holes 65 of the bracket 60, positioning the bracket 60 on the lower member 50.

[Upper surface member 30]
5, on the inner surface of the upper surface main body portion 32, the upper surface fitted portions 34 and the second buffer positioning portions 35 are arranged alternately in the circumferential direction of the upper surface member 30. The upper surface fitted portions 34 and the second buffer positioning portions 35 are arranged in a range on the outer periphery of the inner surface of the upper surface member 30 excluding the linear portion sandwiched between the pair of hinge connecting portions 30H.

The inner surface of the top surface member 30 includes a top wall 30W and a second buffer engaged portion 30B.
The top wall 30W rises from the inner surface of the top member 30 toward the bottom member 50. The top wall 30W is disposed inside the top fitted portion 34 and the second buffer positioning portion 35. In a plan view seen from a viewpoint facing the inner surface of the top member 30, the top wall 30W has an inverted U-shape that follows the edge of the top main body portion 32.

The second buffer engaged portion 30B is sandwiched between a pair of hinge connection portions 30H on the outer periphery of the inner surface of the top surface member 30. The second buffer engaged portion 30B protrudes from the inner surface of the top surface member 30 toward the bottom surface member 50. The second buffer engaged portion 30B of the top surface member 30 is sized to fit into the upper positioned portion 43B of the second buffer member 40B.

As shown in Figure 6, the top wall 30W is supported by reinforcing ribs 35S that extend from the top wall 30W toward the inside of the inner surface of the top main body portion 32. The top wall 30W has a plurality of restriction holes 35H that penetrate the top wall 30W in the direction in which the top main body portion 32 expands.

The upper surface fitted portion 34 has a flattened rectangular tubular shape that extends along the inner surface of the upper surface main body portion 32 from the end face of the upper surface main body portion 32 that constitutes the outer peripheral end face 20R to the upper surface wall 30W. The upper surface fitted portion 34 opens toward the end face of the upper surface main body portion 32. The upper surface fitted portion 34 has a locking hole 34H. The locking hole 34H penetrates the wall of the upper surface fitted portion 34 that faces the lower surface member 50.

The second buffer positioning portions 35 are arranged one by one between adjacent upper surface fitted portions 34 in the circumferential direction of the upper surface main body portion 32. The second buffer positioning portions 35 are arranged between the end surface of the upper surface main body portion 32 and the upper surface wall 30W. The second buffer positioning portions 35 are protrusions that protrude from the inner surface of the upper surface main body portion 32 toward the lower surface member 50.

[Lower surface member 50]
As shown in FIG. 7, in a plan view seen from a viewpoint facing the inner surface of the lower surface member 50, the first lower surface wall 50W1 is disposed along substantially the entire periphery of the lower surface main body portion 52.

The second lower wall 50W2 has a shape that follows the shape of the first lower wall 50W1. A constant gap is maintained between the first lower wall 50W1 and the second lower wall 50W2 throughout the entire extension direction of the second lower wall 50W2. The second lower wall 50W2 is positioned within the outer periphery of the inner surface of the lower main body portion 52, excluding the linear portion sandwiched between the pair of hinge connection portions 30H.

The third lower wall 50W3 has a shape that follows the shape of the second lower wall 50W2. A constant gap is provided between the second lower wall 50W2 and the third lower wall 50W3 throughout the entire direction in which the second lower wall 50W2 extends. The third lower wall 50W3 is distributed over the entire periphery of the inner surface of the lower main body portion 52, excluding the linear portion sandwiched between the pair of hinge connection portions 30H.

As shown in Figure 8, the height to which the first lower wall 50W1 rises from the inner surface of the lower main body portion 52 alternates between high and low portions along the circumferential direction of the lower main body portion 52. The high portions of the first lower wall 50W1 are the lower mating portions 54. Each lower mating portion 54 has one mating recess 54G recessed in the first lower wall 50W1 from the outside of the lower main body portion 52 toward the inside of the lower main body portion 52.

The second lower wall 50W2 has multiple restricted protrusions 53T that protrude from the second lower wall 50W2 toward the inside of the lower main body portion 52. The amount of protrusion of the restricted protrusions 53T is smaller than the distance between the second lower wall 50W2 and the third lower wall 50W3.

[First cushioning member 40A]
9, the upper fitting portion 43 has a rectangular piece shape that protrudes inward from the first buffer member 40A. The lower fitting portion 45 has a rectangular closed ring shape that protrudes inward from the first buffer member 40A. The upper fitting portions 43 and the lower fitting portions 45 are alternately arranged with gaps between them in the circumferential direction of the buffer main body 42.

[Upper fitting portion 43 and upper surface fitted portion 34]
10 , the upper fitting portion 43 includes a fitting piece 43A, a locking portion 43C, and a pair of locking protrusions 43D. The fitting piece 43A is a rectangular piece that has a plate shape that extends along the upper surface main body portion 32, i.e., along the mounting surface 20S of the table body 20, and is formed integrally with the buffer main body portion 42. The fitting piece 43A is sized to fit into the upper surface fitted portion 34 through the opening of the upper surface fitted portion 34.

The locking portion 43C is located on the surface of the fitting piece 43A facing the lower surface main body portion 52. The locking portion 43C is located at the tip of the fitting piece 43A in the direction in which the fitting piece 43A is fitted. The locking portion 43C protrudes in the thickness direction of the fitting piece 43A, i.e., in the thickness direction of the table body 20. The locking portion 43C is sized to fit into the locking hole 34H of the upper surface fitted portion 34. The locking protrusion 43D is located on the surface of the fitting piece 43A facing the lower surface main body portion 52. The locking protrusion 43D extends in the direction in which the fitting piece 43A is fitted. The amount of protrusion of the locking protrusion 43D is smaller than the amount of protrusion of the locking protrusion 43C.

Fig. 12 is a cross-sectional view of the table body 20 taken along line 12-12 in Fig. 7. Line 12-12 in Fig. 7 passes between adjacent lower surface fitted portions 54 in the lower surface member 50.
12 , when the upper fitting portion 43 is fitted into the upper surface fitted portion 34, the fitting piece 43A of the buffer member 40 is fitted into the upper surface fitted portion 34 through the opening of the upper surface fitted portion 34 of the top surface member 30. The fitting of the fitting piece 43A proceeds smoothly through sliding contact between the locking protrusion 43D and the upper surface fitted portion 34. Then, the fitting piece 43A fitted into the upper surface fitted portion 34 is fixed to the upper surface fitted portion 34 by fitting the locking portion 43C into the locking hole 34H so that the top surface member 30 and the buffer member 40 are flush with each other on the outer peripheral end surface 20R of the table body 20. As a result, the upper fitting portion 43 is fixed to the upper surface fitted portion 34 in two directions: in the direction in which the support surface 20S of the table body 20 widens and in the thickness direction of the table body 20.

In this way, the upper surface fitted portion 34 of the upper surface member 30 is an example of a first fitted portion provided on the first member. In this case, the lower surface member 50 is an example of a second member, and the upper fitted portion 43 of the first cushioning member 40A is an example of a first fitted portion. The first fitted portion and the first fitted portion fit together in the thickness direction of the table body 20 and in the direction in which the support surface 20S of the table body 20 widens.

The upper surface fitted portion 34 of the upper surface member 30 is an example of a fitted recess. The fitted recess has a locking hole 34H into which the locking portion 43C fits when the fitting piece 43A is fitted into the fitted recess.

[Lower fitting portion 45 and lower fitted portion 54]
10 , the lower fitting portion 45 includes a positioned ring portion 45A, a pair of fitting claws 45B, and a fitting protrusion 45C. The positioned ring portion 45A has an annular shape that extends along the upper surface main body portion 32, i.e., along the mounting surface 20S of the table main body 20, and is formed integrally with the buffer main body portion 42. The positioned ring portion 45A defines a hole into which the second buffer positioning portion 35 is loosely inserted.

The pair of engaging claws 45B are arranged on the surface of the positioned ring portion 45A facing the lower main body portion 52. The pair of engaging claws 45B protrude from the positioned ring portion 45A toward the lower main body portion 52. The pair of engaging claws 45B provide a gap between the inner surface of the buffer main body portion 42 and the engaging claws 45B, into which the first lower wall 50W1 is fitted. The fitting protrusion 45C protrudes from the inner surface of the buffer main body portion 42 toward the inside of the buffer main body portion 42. The fitting protrusion 45C is arranged between the pair of engaging claws 45B in the circumferential direction of the buffer main body portion 42. The fitting protrusion 45C is sized to fit into the fitting recess 54G.

Fig. 13 is a cross-sectional view of the table body 20 taken along line 13-13 in Fig. 7. Line 13-13 in Fig. 7 passes through the lower fitted portion 54 of the lower member 50 except for the fitting recess 54G.
Fig. 14 is a cross-sectional view of the table body 20 taken along line 14-14 in Fig. 7. Line 14-14 in Fig. 7 passes through the fitting recess 54G in the lower surface fitted portion 54 of the lower surface member 50.

As shown in FIG. 13, when the upper mating portion 43 is fitted into the upper surface mated portion 34, the second buffer positioning portion 35 of the upper surface member 30 is loosely inserted into the positioned ring portion 45A of the buffer member 40. Furthermore, the first buffer positioning portion 30E (see FIG. 6) of the upper surface member 30 is loosely inserted into the positioned end portion 40E (see FIG. 10) of the buffer member 40. This positions the entire buffer member 40 on the upper surface member 30. When the lower mating portion 45 is fitted into the lower surface mated portion 54, the first lower surface wall 50W1 of the lower surface member 50 is fitted between the inner surface of the buffer main body portion 42 and the mating claw 45B. Furthermore, the abutment portion of the top surface of the first lower wall 50W1 that constitutes the lower surface mated portion 54 abuts against the abutment portion, which is the base end of the lower mating portion 45.

As shown in Figure 14, when the lower fitting portion 45 is fitted into the lower surface fitted portion 54, the fitting protrusion 45C of the cushioning member 40 fits into the fitting recess 54G of the lower surface member 50. As a result, the lower fitting portion 45 is fixed to the lower surface fitted portion 54 in two directions: in the direction in which the support surface 20S of the table body 20 widens, and in the thickness direction of the table body 20.

In this way, the lower surface fitted portion 54 of the lower surface member 50 is an example of a first fitted portion provided on the first member. In this case, the upper surface member 30 is an example of a second member, and the lower fitted portion 45 of the first cushioning member 40A is an example of a first fitted portion. The first fitted portion and the first fitted portion fit together in the thickness direction of the table body 20 and in the direction in which the support surface 20S of the table body 20 widens.

The portion of the top surface of the first lower wall 50W1 that constitutes the lower surface fitted portion 54 is an example of an abutment portion. The base end of the lower fitting portion 45 of the buffer member 40 is an example of an abutment portion that abuts against the abutment portion. The base end of the lower fitting portion 45 abuts against the top surface of the lower surface fitted portion 54 in the thickness direction of the table body 20 when the fitting protrusion 45C of the lower fitting portion 45 fits into the fitting recess 54G of the lower surface fitted portion 54.

The lower mating portion 54 is an example of a mating protrusion that rises from the lower surface member 50 toward the upper surface member 30. The fitting protrusion 45C of the lower mating portion 45 is an example of a first positioning portion that positions the first buffer member 40A on the mating protrusion in the height direction of the mating protrusion. The inner surface of the buffer main body 42 and the fitting claw 45B are an example of a second positioning portion that positions the first buffer member 40A on the mating protrusion in the thickness direction of the mating protrusion, which intersects with the height direction of the mating protrusion.

[Second cushioning member 40B]
11, the second buffer engaged portion 30B of the top surface member 30 is fitted into the upper positioned portion 43B of the second buffer member 40B. The positioning protrusion 54B (see FIG. 8) of the bottom surface member 50 is hooked onto the lower positioned portion 45D (see FIG. 3) of the second buffer member 40B. This positions the second buffer member 40B relative to the top surface member 30 and the bottom surface member 50.

[Upper surface member 30 and lower surface member 50]
Fig. 15 is a cross-sectional view of the table main body 20 taken along line 15-15 in Fig. 7. Line 15-15 in Fig. 7 passes through the third lower wall 50W3 of the lower member 50.

16 is a cross-sectional view of the table body 20 taken along line 16-16 in FIG. 7. Line 16-16 in FIG.
15, when the buffer member 40 is fitted between the upper surface member 30 and the lower surface member 50 and the upper surface member 30 is pressed against the lower surface member 50, the upper surface wall 30W is sandwiched between the second lower surface wall 50W2 and the third lower surface wall 50W3. This fixes the upper surface member 30 to the lower surface member 50 in the planar direction of the mounting surface 20S.

16, when the top member 30 is pressed toward the bottom member 50 with the top wall 30W sandwiched between the second bottom wall 50W2 and the third bottom wall 50W3, the restricted protrusion 53T of the second bottom wall 50W2 fits into the restriction hole 35H of the top wall 30W. This restricts the position of the top member 30 in the thickness direction of the table body 20 by the bottom member 50, and the top member 30 is fixed to the bottom member 50. Then, the locking portion 43C of the first buffer member 40A is further fitted into the locking hole 34H of the top member 30, and the fitting protrusion 45C of the first buffer member 40A is securely fitted into the fitting recess 54G of the bottom member 50. The second buffer member 40B is sandwiched between the top member 30 and the bottom member 50. The upper surface wall 30W is an example of a restricting protrusion that rises from the inner surface of the upper surface member 30 toward the inner surface of the lower surface member 50.

[effect]
As described above, according to the above embodiment, the following effects can be obtained.
(1) The upper surface member 30 is mechanically coupled to the buffer member 40 by fitting the upper fitting portion 43 into the upper surface fitted portion 34. The lower surface member 50 is mechanically coupled to the buffer member 40 by fitting the lower fitting portion 45 into the lower surface fitted portion 54. In this way, the buffer member 40 is mechanically coupled to both the upper surface member 30 and the lower surface member 50, which increases the robustness of the connection between the upper surface member 30 and the lower surface member 50 by the buffer member 40.

(2) The buffer member 40 protrudes outward beyond the upper surface member 30 and the lower surface member 50 at the outer peripheral end surface 20R. This allows the buffer member 40 to soften the impact acting on the outer peripheral end surface 20R. This also prevents the upper surface member 30 from separating from the lower surface member 50 due to the impact acting on the outer peripheral end surface 20R. Furthermore, the reaction force from the table body 20 to the target of the impact on the outer peripheral end surface 20R can be reduced.

(3) When the lower mating portion 45 is fitted into the lower mated portion 54, the base end of the lower mating portion 45 abuts against the first lower wall 50W1 of the lower surface member 50 in the thickness direction of the table body 20. Impacts and vibrations acting from the lower surface member 50 in the thickness direction of the table body 20 are absorbed by the buffer member 40. This further enhances the robustness of the connection between the upper surface member 30 and the lower surface member 50 against impacts acting in the thickness direction of the table body 20.

(4) By fitting the restricted protrusion 53T of the bottom surface member 50 into the restriction hole 35H of the top surface member 30, the position of the bottom surface member 50 in the thickness direction of the table body 20 is restricted by the top surface member 30. Therefore, separation of the bottom surface member 50 from the top surface member 30 due to impact or vibration in the thickness direction of the table body 20 is also prevented through the direct mechanical connection between the top surface member 30 and the bottom surface member 50.

(5) The mechanical strength of the table body 20 is increased by the bracket 60 and the protruding rib 52T. Furthermore, because the bracket 60 fixed to the upper surface member 30 is positioned by the positioning protrusion 56 of the lower surface member 50, misalignment of the lower surface member 50 relative to the upper surface member 30 is also suppressed through the positioning of the bracket 60.

(6) The fitting piece 43A fits into the upper surface fitting portion 34, and the locking portion 43C of the fitting piece 43A fits into the locking hole 34H. As a result, the upper fitting portion 43 is fixed to the upper surface fitting portion 34 in two directions: in the direction in which the support surface 20S of the table body 20 widens, and in the thickness direction of the table body 20. As a result, misalignment of the buffer member 40 relative to the upper surface member 30 is further reduced.

(7) The first lower wall 50W1 is fitted between the inner surface of the buffer main body 42 and the fitting claw 45B, and the fitting protrusion 45C is fitted into the fitting recess 54G. Therefore, the lower fitting portion 45 is fixed to the lower fitted portion 54 in two directions: in the direction in which the support surface 20S of the table main body 20 widens, and in the thickness direction of the table main body 20. As a result, misalignment of the buffer member 40 relative to the lower surface member 50 is further reduced.

(8) The mechanical bond between the upper surface member 30 and the buffer member 40 and the mechanical bond between the lower surface member 50 and the buffer member 40 are alternately repeated in the circumferential direction of the table body 20. As a result, the mechanical bonding force between the upper surface member 30 and the buffer member 40 is obtained so as to be continuous in the circumferential direction of the table body 20, and the mechanical bonding force between the lower surface member 50 and the buffer member 40 is also obtained so as to be continuous in the circumferential direction of the table body 20. As a result, it is possible to prevent the bond between the upper surface member 30 and the buffer member 40 or the bond between the lower surface member 50 and the buffer member 40 from being weakened locally in the circumferential direction of the table body 20.

[Example of change]
The above embodiment can be modified as follows.
The first buffer member 40A may include upper fitting portions 43 such that a plurality of upper fitting portions 43 are adjacent to each other in the circumferential direction of the table body 20. The first buffer member 40A may include lower fitting portions 45 such that a plurality of lower fitting portions 45 are adjacent to each other in the circumferential direction of the table body 20.

- The upper surface mating portion 34 is a circular hole-shaped recess whose diameter increases from the lower surface member 50 toward the upper surface member 30, and the upper mating portion 43 has a cylindrical shape whose diameter increases from the buffer member 40 toward the upper surface member 30, and may be a mating pin that fits into the recess in a removable manner.

- The upper surface mating portion 34 is a mating pin having a cylindrical shape whose diameter increases from the upper surface member 30 toward the lower surface member 50, and the upper mating portion 43 has a circular hole shape whose diameter increases from the buffer member 40 toward the upper surface member 30, and may also be a circular hole-shaped recess into which the mating pin fits so that it can be removed.

- The lower surface mating portion 54 is a circular hole-shaped recess whose diameter increases from the lower surface member 50 toward the upper surface member 30, and the lower mating portion 45 has a cylindrical shape whose diameter increases from the buffer member 40 toward the lower surface member 50, and may be a mating pin that fits into the above-mentioned recess in a removable manner.

- The lower mating portion 54 is a cylindrical mating pin whose diameter increases from the upper surface member 30 toward the lower surface member 50, and the lower mating portion 45 has a circular hole whose diameter increases from the buffer member 40 toward the lower surface member 50, and may also be a circular hole-shaped recess into which the mating pin fits so that it can be removed.

The positioned ring portion 45A is not limited to a loose insertion where a gap is left between the second buffer positioning portion 35 and the positioned ring portion 45A, but may have a structure where the second buffer positioning portion 35 and the positioned ring portion 45A are fitted together without a gap. Even with this configuration, when the buffer member 40 is attached to the top surface member 30, the space between adjacent upper fitting portions 43 is positioned circumferentially by the lower fitting portion 45 so that the adjacent upper fitting portions 43 do not separate from the top surface member 30. Note that if the second buffer positioning portion 35 is loosely inserted into the positioned ring portion 45A, the workload of fitting each of the upper fitting portions 43 into the top surface member 30 can be reduced by the amount of the gap between the second buffer positioning portion 35 and the positioned ring portion 45A.

The first buffer positioning portion 30E of the top surface member 30 is not limited to a loose insertion, in which a gap is left between the first buffer positioning portion 30E and the positioned end portion 40E, but may have a structure in which the first buffer positioning portion 30E is inserted without a gap between the first buffer positioning portion 30E and the positioned end portion 40E. Even with this configuration, when the buffer member 40 is attached to the top surface member 30, both ends of the first buffer member 40A are positioned on the top surface member 30 so that they do not separate from the top surface member 30. Note that if the first buffer positioning portion 30E is inserted loosely into the positioned end portion 40E, the workload of inserting each of the multiple upper fitting portions 43 into the top surface member 30 can be reduced by the amount of the gap between the first buffer positioning portion 30E and the positioned end portion 40E.

DESCRIPTION OF SYMBOLS 10...Base portion 20...Table body 20S...Placement surface 20R...Outer peripheral end surface 21...Anti-slip sheet 30...Upper surface member 32...Upper surface outer peripheral portion 34...Upper surface fitted portion 34H...Latching hole 40...Buffer member 40A...First buffer member 40B...Second buffer member 43...Upper fitting portion 43A...Fitting piece 43C...Latching portion 45...Lower fitting portion 45A...Positioned ring portion 45B...Fitting claw 45C...Fitting protrusion 50...Lower surface member 54...Lower surface fitted portion 60...Bracket

Claims (9)

a base portion attached to the interior of the vehicle;
a table body rotatably supported on the base portion;
An in-vehicle table device comprising:
The table body is
an upper surface member that forms the upper surface of the table body;
a lower surface member that forms the lower surface of the table body;
a buffer member sandwiched between the upper surface member and the lower surface member,
the upper surface member includes an upper surface fitted portion disposed inside the table body,
the lower surface member includes a lower surface fitted portion disposed inside the table body,
The cushioning member includes an upper fitting portion that is fitted into the upper surface fitting portion, and a lower fitting portion that is fitted into the lower surface fitting portion. the table body has an outer peripheral end surface,
The vehicle-mounted table device according to claim 1 , wherein the outer peripheral end surface of the buffer member protrudes outward beyond the upper surface member and the lower surface member. the lower surface member includes an abutment portion,
The vehicle-mounted table device according to claim 1 , wherein the buffer member includes an abutting portion that abuts against the abutted portion in the thickness direction of the table body by fitting the lower fitting portion into the lower surface fitted portion. one of the upper surface member and the lower surface member is a first member,
the upper surface member and the lower surface member other than the first member are second members,
an inner surface of the first member includes a restricting protrusion that rises toward the second member;
The restricting protrusion has a restricting hole,
an inner surface of the second member includes a restricted protrusion that is fitted into the restriction hole;
The vehicle-mounted table apparatus according to claim 1 , wherein the position of the second member in the thickness direction of the table body is restricted by the first member when the restricted protrusion is fitted into the restriction hole. a bracket made of a metal plate fixed to the inner surface of the upper surface member;
The bracket has a plurality of positioning holes;
the lower surface member includes a positioning protrusion rising toward the upper surface member and a rigid portion of the lower surface member that has increased mechanical strength,
The vehicle-mounted table device according to claim 1 , wherein the bracket is positioned on the lower surface member by fitting the positioning protrusion into the positioning hole, and is superimposed on the rigid portion. At least one of the upper surface fitted portion and the lower surface fitted portion is a first fitted portion,
a first fitting portion is a fitting portion of the upper fitting portion and the lower fitting portion that is fitted into the first fitted portion;
The vehicle-mounted table device according to claim 1 , wherein the first fitted portion and the first fitting portion are fitted together in a thickness direction of the table body and in a direction in which the placing surface of the table body extends. At least one of the upper surface fitted portion and the lower surface fitted portion is a first fitted portion,
a first fitting portion is a fitting portion of the upper fitting portion and the lower fitting portion that is fitted into the first fitted portion;
the first fitting portion includes a fitting piece that protrudes from an outer peripheral end surface of the table body toward the inside of the table body in a direction in which the placement surface of the table body widens,
The fitting piece has a locking portion that protrudes in the thickness direction of the table body,
the first fitted portion includes a fitted recess into which the fitting piece is fitted,
The vehicle-mounted table apparatus according to claim 1 , wherein the insertion recess includes a locking hole into which the locking portion is fitted when the insertion piece is fitted into the insertion recess. one of the upper surface member and the lower surface member is a first member,
the upper surface member and the lower surface member other than the first member are second members,
an inner surface of the first member includes a fitting projection that rises toward the second member;
The buffer member is
a first positioning portion that positions the buffer member on the fitted protrusion in a height direction of the fitted protrusion;
The vehicle-mounted table device according to claim 1 , further comprising: a second positioning portion that positions the buffer member on the fitted protrusion in a thickness direction that intersects with the height direction of the fitted protrusion. The vehicle-mounted table apparatus according to claim 1 , wherein the buffer member extends in a circumferential direction of the table body and includes the upper fitting portions and the lower fitting portions alternately in the circumferential direction.